Nvidia's CEO showed an updated version of the company's Shield portable gaming device at the Computex trade show Tuesday, and said it will start shipping the device later this month to customers who pre-ordered it.

It has the same basic design as the system unveiled at the International CES in January, with its 5-inch flip-out display, but Nvidia has worked on the controls and materials to make the device feel more solid, said CEO Jen-Hsun Huang.

"The basic architecture is the same. Some of the industrial design was enhanced, it feels more solid. You can really fight it, it feels very rigid," he said.

Shield is based on Nvidia's new Tegra 4 processor and runs the Android OS. It marks Nvidia's entry into the portable gaming market, where it will have to compete with Nintendo and Sony, as well as with tablet and smartphone makers.

It's a new business for Nvidia and the company is taking the introduction slowly in order to make sure it does it right, Huang said. It won't sell the product internationally until it gets the sales and support model nailed down in the U.S.

Last month, Nvidia said Shield would be available for pre-order on May 20, priced at $349. The pre-orders have been "very limited," Huang said, but he said it's because Nvidia didn't want to market Shield heavily until it knew it could manufacture and deliver it.

"Later this month we'll go very broad" with the marketing, he said. The company will start to ship the device to customers who preordered it at around the same time.

Huang showed the updated Shield, which he said is the final production version, to a group of reporters in a meeting room away from the Computex show floor.

Separately, he demonstrated a prototype system that lets gamers stream games from a top-end gaming PC to a TV somewhere else in the house.

He showed a state of the art game running on a PC with Nvidia's new GeForce GTX 780 graphics card. A TV wouldn't have the GPU power to render such a game, but still people might want to play the game on a screen in another room in the house.

The technology he showed converts the game into an H.264 video stream and transmits it via Wi-Fi from the PC to the other room, where a separate, standalone Tegra device decodes the video so that the game can be played on the TV.

"The remote graphics needs to be very fast and the latency very low. There needs to be a software receiver that's also very low latency, managing the quality of service between the PC and the TV," Huang said.

In the demonstration here, the game looked to be playing smoothly on the TV, just like it did on the PC across the room where it was being streamed from.

A player could save the game on the TV, then pick it up in the same spot on their PC or on a Shield device, he said.

It was only a demonstration, and Huang didn't say when the remote streaming system might be offered in product form.

Nvidia has also worked with Valve, the company that operates the Steam games store, to make it work better on portable devices, he said.

It's all part of a plan to usher in the "multi screen world," according to Huang. With an application processor, Android and the cloud, all screens -- be they TVs, laptops or the display in the back of a car -- will be able to play video games, music and movies, he said.

"You're life is pretty much in the cloud now, so any display with an application processor and Android suddenly becomes very useful," he said.

James Niccolai covers data centers and general technology news for IDG News Service. Follow James on Twitter at @jniccolai. James's e-mail address is james_niccolai@idg.com

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

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